The 20 x values have a mean of 100.61 and the 20 y values, Ask an Expert

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Suppose IQ were obtained from randomly selected couples. For 20 such pairs of people, the linear correlation coefficient is 0.902 and the equation of the regression line is y^ = - 0.64 + 0.99x, where x represents the IQ score of the husband , also the 20 x values have a mean of 100.61 and the 20 y values have a mean of 98.75. What is the best predicted IQ of the wife , given that the husband has an IQ of 105 ? Use a significance level of 0.05.

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Statistics and Probability, Statistics

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